Answer:
655Step-by-step explanation:
5
Answer:

Step-by-step explanation:
Let use the following trigonometric identities:

Then, the equation is simplified by substituting its components:





Answer:
7
Step-by-step explanation:
21×1/3
21÷3=7
hope I've helped
Answer D: The graph increases as x goes to -infinity and decreases as x goes to infinity